> None of these ARM processors had hardware floating point
More importantly, IEEE 754 floating point ISA is not great for calculators - they don’t require the speed a personal computer does, and calculators work hard to hide the fact numbers such as 0.45 can’t be represented as IEEE 754 floats.
More importantly, IEEE 754 floating point ISA is not great for calculators - they don’t require the speed a personal computer does, and calculators work hard to hide the fact numbers such as 0.45 can’t be represented as IEEE 754 floats.